ZN85-40.5T Vacuum Circuit Breaker
**Rated Current:** This circuit breaker can handle a continuous current of up to 1250 A under normal operating conditions, making it suitable for a variety of electrical systems.
**Tripping Capacity:** With a robust tripping capacity of 25 kA, the ZN85-40.5T can effectively interrupt fault currents, protecting your equipment from damage.
**Tripping Time:** The circuit breaker features a rapid tripping time of ≤ 30 ms, ensuring quick disconnection during fault conditions to enhance system safety.
**Operation Mode:** Available in both electric and manual operation modes, the ZN85-40.5T provides flexibility for various installation needs.
**Distance:** The minimum contact separation after disconnection is maintained at a safe distance, ensuring effective isolation and safety during maintenance.
**Delivery:** We offer multiple shipping options, including express delivery and standard freight, to meet your timeline and logistical requirements.
**Packaging:** Each ZN85-40.5T is securely packaged in a sturdy outer carton, ensuring protection during transit and delivery.
--- Feel free to adjust any specific details as needed!
ZN85-40.5T Vacuum Circuit Breaker Introduction
The ZN85-40.5T Vacuum Circuit Breaker from Shaanxi Huadian Electric Co., Ltd. is designed to deliver reliable performance in medium and high-voltage applications. Built with cutting-edge technology, this circuit breaker is an essential component for power transmission and distribution systems, ensuring the safe interruption of fault currents and protecting valuable equipment from damage. Ideal for industries like power generation, petrochemicals, and urban infrastructure, the ZN85-40.5T guarantees both efficiency and safety in its operation.
Product Features and Advantages
- High Interruption Capability: Designed to handle high fault currents, ensuring maximum safety in operation.
- Long Mechanical Life: Built for durability, this breaker boasts a high mechanical endurance, reducing maintenance needs and downtime.
- Compact Design: Its space-saving structure makes it suitable for installations with limited room, offering flexibility without compromising functionality.
- Environmentally Friendly: The vacuum arc extinction technology eliminates the need for harmful gases, promoting greener power distribution.
- Fully Certified: Meets ISO9001:2000 standards, ensuring compliance with global quality management systems.
Product Structure
The ZN85-40.5T Vacuum Circuit Breaker is engineered with a modular structure that allows for easy integration into existing switchgear systems. It features a robust vacuum interrupter enclosed in an epoxy resin insulation system. The compact design allows for efficient arc extinguishing, while the carefully designed mechanical system ensures smooth operation and a long service life. This structure ensures both safety and reliability across various demanding environments.
Main Technical Parameters
- Rated Voltage: 40.5 kV
- Rated Current: 630-3150 A
- Breaking Capacity: 31.5 kA
- Operating Mechanism: Spring or motorized
- Mechanical Life: 10,000 operations
- Standards: IEC 62271-100, GB1984-2003
| No. | Item | Unit | Data | ||
| 1 | Rated Voltage | Kv | 40.5 | ||
| 2 | Rated Insulation(1min power frequency withstand voltage) | Kv | 95 | ||
| 3 | Rated Insulation(Rated lightning impulse withstand voltage) | A | 185 | ||
| 4 | Rated Frequency | Hz | 50 | ||
| 5 | Rated Current | A | 630 / 1250/ 1600 / 2000 / 2500 | ||
| 6 | Rated Short-circuit Breaking Current | Ka | 25 / 31.5 | ||
| 7 | Rated Peak Withstanding Current | Ka | 63 / 80 | ||
| 8.a | Rated short-circuit making current | Ka | 63 / 80 | ||
| 8.b | Rated Short-circuit Current Breaking Times | F | 20 | ||
| 9 | Breaking Time | ms | ≤80 | ||
| 10 | Rated Thermal Stabilization Time | s | 4 | ||
| 11 | Rated Sequence of Operations | / | O-0.3s-CO-180s-CO | ||
| 12 | Rated Operating Voltage | V | AC110 / AC 220 / DC110 / DC 220 | ||
| 13 | Rated Working Current of Closing and Opening Coil | / | 1.05(110V) / 0.96(220V) | ||
| 14 | Phase Center Distance | mm | 300±1.5 / 380±1.5 / 440± 1.5 | ||
| 15 | Allowable Wear Thickness of Contacts | mm | ≤3 | ||
| 16 | Main Circuit Resistance for Each Phase | μΩ | ≤80 (≤1250A）/ ≤60 (≥1600A） | ||
| 17 | Mechanical Lifetime | F | 10000 | ||
Mechanical characteristic parameters：
| No. | Item | Unit | Data | ||
| 1 | Contact Distance | mm | 20±2 | ||
| 2 | Overtravel | mm | 4±1 | ||
| 3 | Average Closing Speed | m/s |
0.6±0.2 |
||
| 4 | Average Opening Speed | m/s | 1.6±0.3 | ||
| 5 | Closing Time | ms | 35 ~ 100 | ||
| 6 | Opening Time | ms | 20 ~ 70 | ||
| 7 | Closing Contact Bounce Time | ms | ≤3 | ||
| 8 | Three-phase Closing and Opening in Different Phases | ms | ≤2 | ||
| 9 | Buffer Stroke | mm | 17 | ||
Prodection Details
Product Outline and Installation Dimensions：
（Unit:mm）
Other information：
Cabinet width 1.4m; Propulsion mechanism stroke 610mm;
Left ground, Light knife ground interlock;
The middle outlet, The secondary socket is 58 cores, and The secondary hose is 1.4m；
Operating voltage: DC 200V;
Other requirements are based on purchase orders；
The technical parameters are subject to the instruction manual.
Product Use Conditions
The ZN85-40.5T Vacuum Circuit Breaker is designed for indoor environments with normal atmospheric conditions. It performs optimally in temperatures ranging from -15°C to +40°C and should be installed in areas free from conductive dust and corrosive gases. Suitable for both new installations and system upgrades, this breaker operates in switchgear used in power plants, substations, and industrial facilities.
Product Application
This ZN85-40.5T Vacuum Circuit Breaker is widely used across various sectors, including:
- Power Plants
- Substations
- Metallurgy
- Petrochemical Industries
- Urban and Rural Grid Upgrades Its adaptability and robust performance make it the ideal choice for any environment requiring reliable circuit protection.
OEM Services
At Shaanxi Huadian Electric Co., Ltd., we fully understand the unique needs of our clients and the importance of delivering solutions that align with their specific requirements. That’s why we offer comprehensive OEM services designed to ensure our products meet your exact specifications. Whether you require customized dimensions to fit particular applications, technical modifications to enhance performance, or specialized packaging for safe transportation and branding purposes, our dedicated team of experts is here to provide tailored solutions that effectively support your business operations. We take pride in our ability to listen to your needs and collaborate closely with you, guaranteeing that the final product not only meets industry standards but also contributes positively to your operational efficiency and success. Your satisfaction is our priority, and we are committed to delivering exceptional quality and service at every stage of the process.
FAQ
1. What industries can benefit from the ZN85-40.5T Vacuum Circuit Breaker?
The ZN85-40.5T Vacuum Circuit Breaker is suitable for industries like power generation, petrochemical, mining, and urban grid infrastructure.
2. Can this circuit breaker handle harsh environmental conditions?
Yes, the ZN85-40.5T is designed to function reliably in indoor settings with standard atmospheric conditions.
3. How often does this circuit breaker require maintenance?
With its long mechanical life of 10,000 operations, the breaker requires minimal maintenance, ensuring long-term cost savings.
4. Do you offer technical support for installation?
Yes, we provide full technical support for installation and operation to ensure optimal performance.
5. How can I customize the ZN85-40.5T for my specific needs?
Our OEM services allow you to customize various features of the breaker, from dimensions to technical specifications. Contact us for more details.
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Contact Us
To learn more about the ZN85-40.5T Vacuum Circuit Breaker or to inquire about custom options, feel free to reach out to us at austinyang@hdswitchgear.com/pannie@hdswitchgear.com/rexwang@hdswitchgear.com.
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